This page gives some basic details about the Raw Total Light Render Element and explains how it is used in compositing.
Overview
The Raw Total Light Render Element is the sum of all raw light (both direct and indirect) in the scene, without any diffuse details.
This pass is useful for changing the appearance of the scene's light in a compositing or image editing application.
UI Path: ||out Network|| > V-Ray Render Elements node > V-Ray > Render Channel > V-Ray Color Channel (RE) > Type > Raw Total Light
Attributes
The parameters for this render element appear in the V-Ray RenderChannelColor render channels node.
Deep Output – Specifies whether to include this render element in deep images.
Color Mapping – When enabled, the Color Mapping options in the render settings are applied to the current render channel.
Consider For AA – When enabled, anti-aliasing is used where possible.
Filtering – Applies the image filter to this channel. Image filter settings are in the Image Sampler tab of the Sampler tab of the V-Ray Renderer node.
Denoise – Enables the render element's denoising, provided the V-Ray Denoiser render element is present.
Derive Raw Channels – Generates data in the raw channels by combining the respective color and the filter color channels.
VFB Color Corrections – Applies the post render color adjustments made from the VFB.
This render element is not supported with V-Ray GPU rendering.
Common uses
The Raw Total Light Render Element is useful for changing the appearance of the entire light of the scene after rendering, using a compositing or image editing application. Below are a couple of examples of possible uses. The first two images show the render element itself and the Beauty render put together. The Raw Total Light Render Element was brightened and tinted differently to show the range of editing possible.
The Raw Total Light Render Element
The Original Beauty Composite
Brightened and tinted Raw Total Light Render Element
Brightened and tinted Raw Total Light
Underlying Compositing Equation
Raw Total Light x Diffuse = Total Lighting
Raw Lighting + Raw GI = Total Light